1858 New Ser. 2 42 The crosses are Tau-shaped, and the two thieves have their hands nailed to the back of the crosses.
1876 2 391 St. Anthony, whose tau-headed cross staff lies over his right arm.
1888 F. G. Lee in 51 356 A figure of a bishop or abbot..bearing a tau-shaped staff.
1905 10 June 727/2 A tau-shaped central chamber.
1969 8 50/1 A short, Tau-headed staff.
2004 L. Preedy tr. B. Baert iv. 249 Both crosses are tau-shaped; the third cross is yet to be found.